Re: [9fans] spam

[Geoff Collyer <geoff@collyer.net>]

I think the spam situation is making (at least some of) us a little
crazed.

The 9grid technique might work among cooperating plan 9 sites if we
can figure out how to make the authentication require less effort by
the site administrators.  It's really easy when the authentication is
set up; to deliver mail to user@machine,

	import -bp machine /mail/box
	mail user

It just works.  No SMTP involved, just local delivery.  Thanks, Dave.

For those who can't talk 9P, I'm trying the experiment of asking
friends to also listen on an alternate port for SMTP; I'm already
doing so.  Once we get a few sites doing it, a few lines in rewrite
can select the alternate port for those sites.  I'm not publishing the
port number in public, to discourage spamming.  Mail arriving on the
alternate port gets less scrutiny and eventually mail to port 25 might
get tossed into a `probably crap' mailbox.

Oh, there's a sick idea: revive UUCP over TCP.